Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method
Sesquioxides of lanthanides, yttrium, and scandium are promising hosts for laser and scintillation materials; however, the crystallization of such compounds is complicated by very high melting temperatures, as well as polymorph transitions. This work reports for the first time the growth of Y<sub...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/4/591 |
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| author | Evgeny Galenin Viktoriia Galenina Iaroslav Gerasymov Daniil Kurtsev Serhii Tkachenko Pavlo Arhipov Sofiia Sadivnycha Vadim Alekseev Anna Shaposhnyk Ianina Boiaryntseva Vira Niestierkina Sandra Witkiewicz-Łukaszek Yuriy Zorenko Oleg Sidletskiy |
| author_facet | Evgeny Galenin Viktoriia Galenina Iaroslav Gerasymov Daniil Kurtsev Serhii Tkachenko Pavlo Arhipov Sofiia Sadivnycha Vadim Alekseev Anna Shaposhnyk Ianina Boiaryntseva Vira Niestierkina Sandra Witkiewicz-Łukaszek Yuriy Zorenko Oleg Sidletskiy |
| author_sort | Evgeny Galenin |
| collection | DOAJ |
| description | Sesquioxides of lanthanides, yttrium, and scandium are promising hosts for laser and scintillation materials; however, the crystallization of such compounds is complicated by very high melting temperatures, as well as polymorph transitions. This work reports for the first time the growth of Y<sub>2</sub>O<sub>3</sub> and Y<sub>2−x</sub>Sc<sub>x</sub>O<sub>3</sub> crystals by the Vertical Gradient Freezing method from tungsten crucibles, proposing an alternative to extremely expensive rhenium and iridium crucibles. Translucent Y<sub>2</sub>O<sub>3</sub> samples are obtained, and their luminescent and scintillation parameters are evaluated. The main issues of Y<sub>2</sub>O<sub>3</sub> crystallization under the proposed conditions are discussed, as well as ways of enhancing the crystal quality. Finally, polymorph transitions are avoided by decreasing the average radius of the rare earth cation by Y<sup>3+</sup>/Sc<sup>3+</sup> substitution, providing transparent Y<sub>2−x</sub>Sc<sub>x</sub>O<sub>3</sub> crystals with a cubic structure. |
| first_indexed | 2024-03-11T05:06:52Z |
| format | Article |
| id | doaj.art-3f7be7d3073945b5a014efb4bb4fcb42 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T05:06:52Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-3f7be7d3073945b5a014efb4bb4fcb422023-11-17T18:50:44ZengMDPI AGCrystals2073-43522023-03-0113459110.3390/cryst13040591Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing MethodEvgeny Galenin0Viktoriia Galenina1Iaroslav Gerasymov2Daniil Kurtsev3Serhii Tkachenko4Pavlo Arhipov5Sofiia Sadivnycha6Vadim Alekseev7Anna Shaposhnyk8Ianina Boiaryntseva9Vira Niestierkina10Sandra Witkiewicz-Łukaszek11Yuriy Zorenko12Oleg Sidletskiy13Institute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineSSI “Institute for Single Crystals” NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineDepartment of Physics, Kazimierz Wielki University in Bydgoszcz, Powstancow Wielkopolskich Str., 2, 85-090 Bydgoszcz, PolandDepartment of Physics, Kazimierz Wielki University in Bydgoszcz, Powstancow Wielkopolskich Str., 2, 85-090 Bydgoszcz, PolandInstitute for Scintillation Materials NAS of Ukraine, 60, Nauky Ave., 61072 Kharkiv, UkraineSesquioxides of lanthanides, yttrium, and scandium are promising hosts for laser and scintillation materials; however, the crystallization of such compounds is complicated by very high melting temperatures, as well as polymorph transitions. This work reports for the first time the growth of Y<sub>2</sub>O<sub>3</sub> and Y<sub>2−x</sub>Sc<sub>x</sub>O<sub>3</sub> crystals by the Vertical Gradient Freezing method from tungsten crucibles, proposing an alternative to extremely expensive rhenium and iridium crucibles. Translucent Y<sub>2</sub>O<sub>3</sub> samples are obtained, and their luminescent and scintillation parameters are evaluated. The main issues of Y<sub>2</sub>O<sub>3</sub> crystallization under the proposed conditions are discussed, as well as ways of enhancing the crystal quality. Finally, polymorph transitions are avoided by decreasing the average radius of the rare earth cation by Y<sup>3+</sup>/Sc<sup>3+</sup> substitution, providing transparent Y<sub>2−x</sub>Sc<sub>x</sub>O<sub>3</sub> crystals with a cubic structure.https://www.mdpi.com/2073-4352/13/4/591crystal growthsesquioxidesvertical gradient freezingscintillatorcarbidizationtungsten crucible |
| spellingShingle | Evgeny Galenin Viktoriia Galenina Iaroslav Gerasymov Daniil Kurtsev Serhii Tkachenko Pavlo Arhipov Sofiia Sadivnycha Vadim Alekseev Anna Shaposhnyk Ianina Boiaryntseva Vira Niestierkina Sandra Witkiewicz-Łukaszek Yuriy Zorenko Oleg Sidletskiy Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method Crystals crystal growth sesquioxides vertical gradient freezing scintillator carbidization tungsten crucible |
| title | Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method |
| title_full | Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method |
| title_fullStr | Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method |
| title_full_unstemmed | Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method |
| title_short | Growth of Sesquioxide Crystals from Tungsten Crucibles by Vertical Gradient Freezing Method |
| title_sort | growth of sesquioxide crystals from tungsten crucibles by vertical gradient freezing method |
| topic | crystal growth sesquioxides vertical gradient freezing scintillator carbidization tungsten crucible |
| url | https://www.mdpi.com/2073-4352/13/4/591 |
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